ChatGPT or Claude subscription

If you already pay for ChatGPT or Claude, Olyvr can use that subscription directly. You don’t need a separate API key.

How it works

Olyvr bundles a small local proxy (CLIProxyAPI, MIT licensed). After you sign in, the proxy runs on your machine and offers your subscription as an OpenAI-compatible endpoint, by default at http://127.0.0.1:8317/v1. Olyvr connects to it like any other endpoint.

Your sign-in tokens are stored in Olyvr’s data folder, and requests go from your machine straight to OpenAI or Anthropic.

Sign in

1. Open Settings → Model access and find Subscriptions.

2. Choose ChatGPT or Claude:

   • ChatGPT: Olyvr shows a sign-in link and a one-time code. Open the link, sign in to your OpenAI account, and enter the code.
   • Claude: a claude.ai sign-in page opens in your browser. Sign in and approve access.

3. Once sign-in completes, the account appears in the list and the proxy starts. Sign-in times out after 15 minutes; start again if that happens.

4. Open a chat and pick a model from the composer’s model picker.

You can sign in to more than one account. The proxy spreads requests across them.

The model picker shows the standard Codex choices and the newest available Claude model in each family, limited to models served by your signed-in accounts. Older Claude snapshots and special variants are omitted. Codex models have a green OpenAI logo; Claude models have a terracotta Claude logo. Each row names its provider, and the selected model keeps its provider icon and color in the composer.

Manage accounts

• Start the local proxy: if the proxy is not running, for example after a restart, use Start the local proxy in the Subscriptions box.
• ChatGPT usage: the Subscriptions box shows your remaining ChatGPT quota when the provider reports it.
• Sign out: remove an account from the list to delete its stored sign-in.

Caution

The proxy keeps running in the background after you quit Olyvr. This will change in a future release. To stop it, end the cli-proxy-api process in Activity Monitor, Task Manager or your system monitor.

Troubleshooting

Message	What to do
“no ChatGPT or Claude account is signed in”	The proxy is running but has no account. Sign in again.
“no cli-proxy-api binary…”	The bundled proxy is missing. Reinstall Olyvr.
Port already in use	The proxy picks the first free port from 8317 upward when it is first set up. If something else took the port later, quit that program or sign in again.

Your use of a subscription through Olyvr is still subject to your provider’s terms.